Method of shaping glass articles.



No. 852,098. PATENTBD APR. 30, 1907. W. E. BOOK. METHOD 0F SHAPING GLASSARTICLES. APILIOATION FILED AUG.18, 1906.

Vm' /l k' J 6V 4. Y T my lilhlll lill? blrllitlhl hrlirllhlril OFllllO-EWILLIAM EMIL BOOK, OF TOLEDO, OHIO, ASSIGNOR TO THE TOLEDO GLASSCOMPANY, OF TOLEDO, OHIO, AA CORPORATlON OF Ol-IIO.

METHOD OF Sl'lilzll GLASS, FITECLES.

Specification of Letters Potent.

atcnted April 30, 1907.

.Application Sled August 18.1906. Serial No, 331,128.

.Be it known that l, WILLIAM EMIL Book, a citizen of the United Statesoi America, residing at Toledo, in the county of Lucas and State oiOhio, have invented certain new and usei'ul improvements in Methods oiEShaping Glass Articles, ol' which the following is a speciiication,reference beingT had therein to the accoinpanying` drawings.

The invcnti on relates to a new and useful method of shaping glassarticles, and consists in lirst forming a blank with a solid bodyportion, and then in forcing out a section of the body and upsettinglthe portion thus forced out and lfinally expandingr the blank to Atorni;and further in such a method combined with an intermediate step ofblowing the blank more tightly into the blank mold before blowing` outthe bottom portion, all as more l'ully hereinafter described andparticularly pointed out in the claii'ns.

ln the drawings l have illustrated the molds and the suction and blowinghead substantially oi the type shown in the Owens patent No. 766,768 ol.Anifrust 2, 1904, which 'machine is oney olf the .machines by which mymethod may be carried out il suitably modi fied, and in these drawings lhave shown in Figure l a blank mold connected with ayacuuiu-producingmeans as in the act oi lillinr' the mold with glass andbel'ore the cutoli is operated, llig. i5 shows a tln'ough the saine moldwith the cut oil in position, the core or plunger withdrawn, andillustrates the blowing ol the blank more tightly into the mold toperfectly shape it; Fig. 3 is a section. similar to l? 2, with thecut-oil Withdrawn and showing` thc bottom ci the blanli blown out into ateat or projection; Fig. 4 is a. section siniihir to Fig. 3, showing theblowing; mold in position. with the bottoni upsetting the tent orprojection; and Fig. 5 shows the article blown-to its complete 'forni inthe blowing or body incid.

A. represents the blank mold, l the neck uiold and C tl e suction andblowingT bead with which these inolds are connected.

D indicates a coro or plunger projecting' through the blowing head andinto the upper eind of the mold cavity, these ports being' sulstantially of the construction shown in the Owens patent above referredto, No. 766,763.

in the position shown in Fig. l tho vacuum section y A l the lower endof the blank, the cut-od device l producing .means connected with themold cavity, and the molten glass has been drawn from the mass .E tolill the niold cavity at the 'upper end surrmmding` the core or plunger,while the cut-oil' or knife is just in position to sever the blank fromthe inass.

In Fig. 2 the cut-oil knife F has been projected across the lower end othe blank, closing' the Inold cavity at the lower end, the core orplunger l has been Withdrawn.Y and the air valve G has been moved intoposition admitting air into the upper end of the blank to blow the blanktightly against the Inold cavity and thus insure its perfect formation.Sometimes it happens that the vacuum which draws the blank into the moldwill partially vforni the neck, but will not perfectly forni it, andthis is necessary .in inaking' bottles or other articles in which theneck is completed in the gatheringT operation, and to insure thc perfectformation ol the neck and the entire filling` of 'the blank mold at allpoints. This Filling' operation is shown in llig.

In liig. 3 l have shown the parts as in his. 2, except thatthe circolill1 has been withdrawn and a puff ol. air is then blown into the upperend oi the blank, slightly enlargingr the cavity therein and forcing' aportion oi the glass out at the lower end oil `the blank, iorni ing theprojection or teat.

ln the operation oi" enti-insr oil the glass at or knit'e chills the endoi" the blank so as to leave a iing-shape l niark or projection on thebottoni ol the blown article, which moro or lcss disiigures the saine,and somclinus leaves sharp edges which are api/io cut the hands of Idiepersons handling the boiilc. This circular' chilledv "porlioii mayremain as a scar or cxcreseuce, because that portion ol' the blank isbut ifery slightly expanded in the blowing operation, or because theknife or cutting tool becomes cooler 'than thc mold section itself', orier both of these reasons.

l-y blowing;v out the lower end ol the blank, as shown in Fig. 3, lthink the glazed or cool portion produced by thc cutting' operation. andthc heat oi' the 'molten glass within, l which has not been chilled,will very rapidly' l render elastic the glazen or chilled 'portion l,due to 'tno cutting. i ln the next operation, which is shown in TOO Fig.4, the blowing rnolfl is inolosed about the 1 blank, and the bottomthereof, striking the teet ll, will Hatten it out across the bottom ofthe blank and preferably push it up slightly 5 on the sides, so that the.lower corner edges ol the blank es originally mede, which have alsobeen oliilletl, by he Putting operation, will be fle-lie tefl and tlieglaze thereon melterlL 4by the heat ot' the plastic, gla'ss in theprojection H. tir is; then admitted into the et'lfmrturY in the ton ofthe blank, and tlie ie expanded in the mold, as shown in K, and it Lwillbe seen that the marl( of the tool, or ille mark produced by the by theCutting' tool, Will entirely eliminated and bottle formed. lliis folievery great objeotions -z'fmtofor existed to the were inns.

roll nre V be oarmtnfg for inmenoe, bjr u; in the @Wens sie shown ln theY i, employed, the

x inltonnie is to e air vali/e,

teelt or projection on the bottom tlrereot', and

blo-ning' the blank to form.

2. The method of shaping glmsonsistingj in forming a blank, ith a.solid. body portion, forcing out the bottom of the blank, unlupsetting,- tlie blown out portion and' blowing; the blank to torni.

3. The method of shaping glass into hollow articles consisting informing in a blank mold blank with e solid body port-ion,

blowirfg the blznllr in the blank mold blow.

ing into tlie blank to forse out :i solid teat or projeotion at tliebottom, upsetting suon projection, and, then in blowing the blank toforni.

l. The. method ol' making bottles, consiste f r og e blank labout a coreto form r 'eo'tly slmpe ille blank, and i'lnall f blowses.

l lill-till, Btl' l limiten, S, wrtrm L. f core, blowing' into thecavity' to more.

